PIRSA:06050025 Scientific Series Cosmology

DOI10.48660/06050025

Series: Cosmology and Gravitation

Shuhmaher, N. (2006). Early stages of the universe: brane gas-driven bulk dynamics. Perimeter Institute. https://pirsa.org/06050025

Shuhmaher, Natalia. Early stages of the universe: brane gas-driven bulk dynamics. Perimeter Institute, May. 30, 2006, https://pirsa.org/06050025 

@misc{ pirsa_PIRSA:06050025,
  doi = {10.48660/06050025},
  url = {https://pirsa.org/06050025},
  author = {Shuhmaher, Natalia},
  keywords = {Cosmology},
  language = {en},
  title = {Early stages of the universe: brane gas-driven bulk dynamics},
  publisher = {Perimeter Institute},
  year = {2006},
  month = {may},
  note = {PIRSA:06050025 see, \url{https://pirsa.org}}
}

Abstract

We propose a new brane world scenario. In our model, the Universe starts as a small bulk filled with a dense gas of branes. The bulk is bounded by two orbifold fixed planes. An initial stage of isotropic expansion ends once a weak potential between the orbifold fixed planes begins to dominate, leading to contraction of the extra spatial dimensions. Depending on the form of the potential, one may obtain either a non-inflationary scenario which solves the entropy and horizon problem, or an improved brane-antibrane inflation model.

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